baber/WOPTO huggingface dataset:
Patent GB-945071-A (GB)
Title: Improvements in or relating to electric traction equipment control
Inventor: JACKSON MICHAEL OLDFIELD
IPC: B60L9/14
Filed: 1961-10-18
Abstract: 945,071. Control of motors. GENERAL ELECTRIC CO. Ltd. Oct. 10, 1962 [Oct. 18, 1961], No. 37369/61. Heading H2J. A control system for selecting between high voltage and low voltage operating states of an electric traction equipment in dependence upon the magnitude of the voltage supplied thereto is arranged so that the equipment can be set to a low voltage operating state only as a change from a high voltage operating state and when the magnitude of the supply voltage is appropriate to the low voltage state. On operating a pantograph " up " push-button, contact 24 is closed and coil 5 is energized so that the equipment is set in the high voltage operating state, interlock contacts 7, 8, closing upon completion of this operation. In a neutral section of the supply line, no further action occurs. If the supply voltage is in a low range, however, relay R3 closes contacts R31 to establish another circuit for the coil 5 and opens contacts R32 to prevent selection of the low voltage state of the traction equipment. Contacts R33 close to energize relay R1 and its slave relay SR1. This causes resistors 16, 17 to be inserted in series with relay R3 and permits relays R2A, R2B to pick up on sufficient supply voltage. Contact SR14 opens to remove one connection to coil 5, and contact SR13 closes to permit subsequent selection of the low voltage state. The existence of a low voltage supply is confirmed by the inability of relay R3 to remain closed when in series with resistors 16, 17. Consequently, contacts R33, R31, open to de-energize coil 5 and contact R32 closes to energize coil 6 and select the low voltage state. Control lead 3 is then energized to close a main circuit-breaker. Subsequent transfer to a neutral section causes relay R1 to drop out, the selection circuit reverting to the high voltage state set by energization of coil 5 through contact SR14 and interlock 30. If the supply voltage is within a medium range, a sequence of operations as for low voltage supply occurs, but in addition relays R2A, R2B, prevent energization of coil 6, and relay R4 is energized and retained, thus blocking the equipment from the low voltage state. On encountering a high voltage supply, the relay R3 will not drop out, so confirming the high voltage selection. On high voltage operation, false low voltage state selection is prevented by opening of contact R41 of relay R4 in the medium and high supply voltage ranges. The contacts of relay R2A are duplicated by relay R2B, and these relays are fed from different rectifier bridges. A ballast resistor 27 is connected across supply transformer 14 to produce such a change in the total circuit impedance that the operation of relay R3 is consolidated when there is a change to a high voltage supply. A modification of the circuit is used in a frequency selecting system, the various relays being frequency-responsive.
Patent GB-372760-A (GB)
Title: Improvements in or relating to the drying and/or filtration of mixtures of liquids and solids
IPC: B01D29/25
Filed: 1930-12-11
Abstract: 372,760. Filters. WARING, H., 94, Cambridge Road, Great Crosby, Liverpool, and GOODLASS WALL & LEAD INDUSTRIES, Ltd., 3, New London Street, London. Dec. 11, 1930, No. 37443. [Class 46.] A process of filtration consists in forming a cake of solid matter on a filtering medium, subjecting the cake to repeated rearrangement of its particles and squeezing the material of the cake against a partition so as to express liquid. Material to be dewatered or dried is passed through a casing 11, lined with filter cloth 21, by paddles 54 .. 57 on a central shaft 39, the action of the paddles being such that they spread the material over the cloth and continually turn over the matter constituting the cake. The blades 57 are so inclined that their rear edges 58 squeeze the material against diaphragms 25, 26 and an endplate 28. The casing 11 may comprise three sections 12, 13, 14, fixed together by means of flanges 15, and each of the sections may be built up of upper and lower parts united by means of flanges 16, 17, Fig. 2. The cloth 21 is nailed down to longitudinal slats 19 fixed in radial slots in apertured flanges 18 on the inner face of the casing. A separate piece of cloth is provided for each part of each section of the casing. The space within the casing is divided by diaphragms 25, 26 fixed between the sections 12, 13, 14. The diaphragm 25 may be formed of two plates, each having an aperture 29, Fig. 3, in their upper part, the effective area of the opening in the diaphragm being adjusted by relative rotation of the plates. The diaphragm 26 is similarly formed, but the plates in this case have apertures at either side instead of in the upper part. The section 12 has an inlet 50 for the material to be treated, and the dewatered material may be discharged through valved outlets 51, 52 from the sections 13, 14 or through an outlet 37 in the end 28 of the casing according to the degree of dryness desired. The outlet 37 may be provided with a shoot with sides adjustable to regulate the rate of discharge. Each section has an outlet 24, which may be connected to suction means, for the discharge of filtrate. The shaft 39 is hollow so that heating or cooling fluid may be passed through it. In modifications the apparatus takes the form of a trough or the inlet for the material under treatment is at the centre. It is stated that in order to assist the rearrangement of the particles of the cake, the drum may be tapped by cam-operated hammers. Specification 223,944, [Class 46, Filtering &c.], is referred to.
Patent GB-891869-A (GB)
Title: Dispensing machine having reach-in door
IPC: G07F9/10
Filed: 1960-11-01
Abstract: 891,869. Coin-freed vending apparatus. DARIOMATIC. Nov. 1, 1960 [Nov. 9, 1959], No. 37480/60. Class 27, A machine for vending packaged articles, such as cartons of milk 11a, delivers the cartons to the lowerpart of casing of the machine, where they are accessible to the customer through an opening 22 which is normally closed by a glass door 26; on opening the door, a roller 38 on a frame 31, 35 carried by the door engages the underside of a second door 45 hinged at 53 and swings it up to close an opening 61 through which the articles fall from the delivery means. Both doors are spring-loaded and a bend 52 is provided on the door 45 so that during closing of the door 26, the roller 38, after rolling along the underside of the door 45, passes the bend 52 and the spring of the door 45 then assists the spring of the other door in closing it. A plastic seal 58 is fitted round the opening 61. The cartons are stored on inclined shelves 13 each having a delivery belt 116 which, on coin-controlled energization of the machine and selection of the appropriate belt by selection buttons 17, is advanced sufficiently to allow a carton to topple off and fall through the opening 61.
Patent GB-523172-A (GB)
Title: An improved support for books and other flat articles
IPC: A47B65/00
Filed: 1938-12-24
Abstract: 523,172. Book-ends. DENTON, J. M. Dec. 24, 1938, No. 37572. [Class 52 (i)] Book-ends a, a' are connected by lazy-tong linkage b located at the back or at the bottom. The linkage may be clamped in position by a screw c, and may be urged to the collapsed position by coiled springs d located in grooves in the book ends, or by tension springs between links. The end links may be pivoted on plates g or in slots in the vertical edges of the ends.
Patent GB-1125260-A (GB)
Title: Twin bearing assembly adapted for kingpin-type wheel suspensions
IPC: B62D7/18
Filed: 1967-08-16
Abstract: 1,125,260. Bearings. TRW Inc. 16 Aug., 1967 [14 March, 1967], No. 37766/67. Heading F2A. [Also in Division B7] A bearing assembly between a shaft 11 and a housing 10 comprises a shaft having an end 15 disposed in a hollow portion of the housing, a first bearing means 25 supporting the end 23 of the shaft in the housing and a second bearing means 28 disposed in the housing but radially spaced from the shaft, the first bearing means being resiliently deformable under heavy loading to permit the second bearing means to support the shaft during the duration of the heavy loading. As shown, the shaft 11 is a kingpin secured in one end of an axle 13 by a tapered pin 14 and supported by a yoke 21 and integral wheel spindle 22 through a thrust bearing 38 and similar upper and lower bearing assemblies 19 and 20. The bearing assembly 19 comprises a closed-ended sleeve 27 which is pressed into the end 17 of the yoke, and contains a plastic bearing 25, which has a split 31 (Fig. 2), to act as a lubricant passage and is pressed by a spring 30 into engagement with the conical end 23 of the kingpin, and a metal bearing 28 engageable, on deformation of the plastic bearing, with a cylindrical portion of the kingpin. The closed end of the sleeve 27 includes a plug 33 which is removable to lubricate the bearings or to facilitate the removal of the sleeve from the yoke or the yoke from the axle. In alternative bearing assemblies (Figs. 4 and 5, not shown), the bearings 25 and 28 are mounted directly in the yoke and the sleeve forms the second bearing respectively.
Patent GB-817383-A (GB)
Title: A process relating to the recovery of unsymmetrical dimethylhydrazine from aqueous solutions by distillation
Filed: 1956-12-11
Abstract: Aqueous solutions containing not more than 30 molar per cent of unsymmetrical dimethylhydrazine are concentrated by fractional distillation under a superatmospheric pressure of at least 15 p.s.i.g., the concentrated solution being obtained as the distillate. A solution containing (by weight) 8 parts dimethylhydrazine, 280 parts water and 22.5 parts sodium chloride obtained by a modified Raschig synthesis is charged at a rate of 310 parts/hour to the middle of a fractionating column having the equivalent of 9 thoretical plates and operating at 15 p.s.i.g. and respectve top and bottom temperatures of 120 DEG  and 122 DEG  C. Salt water is discharged as bottoms and the column temperature is maintained by steam returned from a reboiler.  The overhead stream contains 6.75 parts dimethylhydrazine and 61,35 parts water and is further concentrated to 97 per cent weight dimethylhydrazine by fractional distillation in the presence of caustic soda as described in Specifications 800,248 and 817,111.
Patent GB-1192105-A (GB)
Title: 2-Bromo-1,1,2,3,3-Pentafluoropropane
IPC: C07C17/04
Filed: 1968-08-09
Abstract: 1,192,105. Anaesthetics. BAXTER LABORATORIES Inc. 8 Aug., 1968 [31 Aug., 1967], No. 37878/68. Heading A5B. {Also in Division C2]i Inhalation; anaesthetic compositions comprise the compound CHF 2 -CBrF-CHF 2  together with an amount of oxygen capable of supporting respiration. The active compound may be used in admixture with pharmaceutically acceptable diluents and stabilisers, e:g. thymol, or one or more known inhalation anaesthetics, e.g. nitrous oxide, ether, halothane, chloroform, cyclopropane or methoxyfluorane.
Patent GB-964686-A (GB)
Title: Improvements in or relating to machines for producing carcases for pneumatic vehicle tyres
IPC: B29D30/18
Filed: 1962-10-08
Abstract: 964,686. making tyres. CONTINENTAL GUMIMI-WERKE A.G. Oct. 8, 1962 [Oct. 10, 1961], No. 37933/62. Heading B7C. In a machine in which plies 3 projecting from the end of a drum 2 are gripped between concentric elastic bands 9, 10 and laid against the drum end at least one band, preferably band 9, is constructed as an inflatable airbag (Fig. 1). Fig. 5 shows the band 9 of Fig. 1 with its outer wall less thick than the inner and tapering towards the end 13, facing the drum. The bands are mounted on two sets of levers 5, 6. After laying the plies against the drum end, bead core 12 is fitted, levers 6 moved to expand band 10 (Fig. 1), and band 9 is inflated (Fig. 4) to fold the ply back.
Patent GB-856314-A (GB)
Title: Process for preparing pigmented polyethylene compositions
IPC: C08J3/205
Filed: 1958-11-25
Abstract: 10 to 150 parts of carbon black, 100 parts of polyethylene particles and 1 to 9 parts of water per part of carbon black are blended and then mechanically worked under high shear, e.g. in a Banbury mixer, until the polyethylene fluxes and the water is eliminated. Antioxidants such as thiobis (6-t-butyl-m-cresol) may also be present.  The product may be used as a masterbatch for further compounding with polyethylene.  The products find application as film, coatings and sheathings for wire and cable, as raincoats, garden-hose and ground covers, and as extruded pipe.
Patent GB-344823-A (GB)
Title: Improvements relating to hatches for ships and boats
IPC: B63B19/14
Filed: 1929-12-11
Abstract: 344,823. Ships' hatches. REITH, R. B., 6, Coates Crescent, Edinburgh. Dec. 11, 1929, No. 37965. [Class 113 (i).] In ships' hatches in which the hatch bridles or webs extend at intervals across the hatch and are removable, the hatch webs are longer than the width of the hatch way, each end being housed in a recess or channel which is outside or extends laterally outwardly from the hatchway. The hatch croming plate 12 is cut at each position for receiving a bridle or web 13 and the opening 14 in the coaming is covered by vertical channel 15 which may be a casting or rolled-steel section. The channel 15 is secured to the outside of the plate and is adapted to receive and house the end of the extended hatch 13. The raised bar 16 which supports the cover 21 is similarly cut to allow of the web being put in place or removed therefrom vertically. An outer plate 19 running the length of the hatch may be disposed outside the channels 15 so that the tarpaulin 22 may come down flush the whole length of the side, or the spaces between the channels 15 may be filled with wood for the same purpose. For between deck hatches a slot 14 is cut in the coaming 12 and angle plates 29 supported by an intermediate bracket 30 are provided for housing the ends of the beam 13 as before. In a modification, the main coaming 12 carries above it a flanged coaming 32 laterally and outwardly disposed and which is joggled or provided with housing brackets to take the ends of the beams 13.
Patent GB-853798-A (GB)
Title: Improvements in or relating to dioxaphosphorinanes and their preparation
IPC: C07F9/6574
Filed: 1957-12-09
Abstract: The invention comprises 1,3,2-dioxa-phosphorinanes of formula: <FORM:0853798/IV(b)/1> where R1 to R6 represent hydrogen or alkyl and R7 is one or more substituents selected from hydrogen, halogen, nitro, alkyl or cycloalkyl.  They may be made by reacting a triphenyl phosphite, which may be suitably substituted, with the appropriate 1, 3-glycol, using at least about 1 mol of the phosphite per mol of glycol, preferably 1 to 1,5 mole per mol. The reaction temperature is generally 50 to 184 DEG C., conveniently the temperature at which the appropriate phenol distils at the pressure employed which may be atmospheric, superatmospheric or, preferably, subatmospheric, e.g. 25 mm or less.  Catalysts are not essential but it is preferred to use an alkaline catalyst giving a pH above 9. e.g. sodium, potassium, NaOH, KOH, sodium or potassium phenate, or alcoholates, strong organic bases such as guanidine, or quaternary ammonium bases such as tetramethylammonium hydroxide.  Usually 0,001 to 0,20 mol of catalyst is used per mol of glycol.  Numerous dioxaphosphorinanes and reactants to prepare them are specified, the preferred ones being those with up to three alkyl groups (especially methyl) attached to carbon atoms of the dioxaphosphorinane ring.  The products are useful in plastics compositions.  In examples triphenyl phosphate is reacted with 2-methyl-2,4-pentanediol to give 2-phenoxy, 4,4,6-trimethyl-1, 3, 2-dioxaphosphorinane, with 1, 3-butanediol to give 2-phenoxy, 4-methyl-1, 3, 2-dioxaphosphorinane and with 2, 2-dimethyl-1, 3-propanediol to give 2-phenoxy, 5, 5-dimethyl-1, 3, 2-dioxaphosphorinane, a sodium catalyst being usually used. 3-haloalkyl phenylalkane-phosphonates useful as petrol additives may be prepared by the action of alkyl halides on the products of the invention.  A similar reaction occurs with hydrogen halides 3-bromobutyl phenyl methanephosphonate is prepared by the action of methyl bromide on 2-phenoxy, 4-methyl-1, 3, 2-dioxaphosphorinane in benzene.  The phenoxy group may be replaced by a lower alkoxy group by standard ester-interchange methods.  Reference has been directed by the Comptroller to Specification 803,081.
Patent GB-1081538-A (GB)
Title: Computing and weighing apparatus
IPC: G06Q30/04
Filed: 1965-09-07
Abstract: 1,081,538. Weighing apparatus; multiplying. TOLEDO SCALE CORPORATION. Sept. 7, 1965 [Feb. 1, 1965; March 15, 1965], No. 38238/65. Headings G4A and G4H. The cost of an article is obtained by multiplying the unit price, entered manually on switches, by the weight derived from a photoelectrically-sensed coded scale on a weighing machine. The system performs a sequence of operations under the control of two counters comprising a pair of coupled bi-stable circuits. If the operator changes the unit price, commodity name or tare weight, the system is reset, but the non-changed parameters are locked in their original state. The unit price is entered, and the first counter steps to 01. The multiplying circuit (see below) multiplies the unit price by one and (makes the result available to a printer control circuit, the first counter then steps to 10. Type wheels are positioned according to the unit price by a follow-up system and the first counter steps to 11. A motion detector is conditioned, the operator places the article on the weighing machine, and when the detector signals that motion has ceased, the second counter is stepped to 01. The multiplying circuit multiplies the unit price by the weight of the article and the second counter steps to 10. Type wheels are positioned in accordance with the computed cost of the article and the second counter steps to 11. Printing is then effected on a label. The system comprises various interlock arrangements to prevent errroneous recording. Multiplying circuit, Fig. 5. Counters 259, 260 are initially at zero. The least significant binary-coded decimal price (cents) and weight digits are supplied to coincidence circuits 274, 275. Circuit 274 opens gate 276 and allows clock pulses to reach counter 260 and register 272, gate 277 being open. When the counter 260 corresponds to the weight digit, gate 277 is closed, but clock pulses are still applied to counter 260, which, when it reaches zero, advances counter 259 to 1. If the cents digit is not 1, the cycle is repeated until counter 259 corresponds to the cents digit. Thus a series of groups of pulses are supplied to register 272, the number of groups being equal to the cents digit and the number of pulses in each group being equal to the least significant weight digit, the total number of pulses being the partial product for these two digits. Register 272 comprises a chain of coupled binary-coded decimal counter stages. The first partial product is applied to the first (least significant) stage of register 272. Counter 262 is stepped to select the next weight digit and the partial product of this digit and the cents digit, derived as above, is applied to the second stage of register 272. The process is repeated for the remaining weight digits, then counter 262 steps counter 261 to select the dimes price digit, and this digit is multiplied in turn by the weight digits as above, each partial product being entered in the appropriate stage of register 272. Finally, the dollars digit is multiplied in turn by the weight digits.
Patent GB-976441-A (GB)
Title: Diodes
Inventor: NOLAN ROGER WILLIAM
IPC: H01L25/03
Filed: 1962-10-10
Abstract: 976,441. Semi-conductor devices; circuit assemblies. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 23, 1963 [Oct. 10, 1962], No. 38318/62. Headings H1K and H1R. A plurality of diodes are connected in series and encapsulated in a material the conductivity of which is sufficient to ensure that in use the voltage drops across the diodes will be substantially equal. A suitable encapsulation material is carbon-loaded epoxy resin.
Patent GB-1126020-A (GB)
Title: Fluid directing structures, applicable for example, to gas turbine engines
IPC: F01D5/08
Filed: 1967-08-24
Abstract: 1,126,020. Turbines. GENERAL MOTORS CORP. Aug. 24, 1967 [Dec. 12, 1966], No.38968/67. Heading F1T. A structure for directing a fluid from one body into another body comprises, in the case when the bodies are a turbine rotor disc 9 and a blade root 15 and the fluid is cooling air, a tube 37 which is inserted into counterbores 27, 29 through a bore 26 and retained in position by enlarging the tube at 41 by means of a punch 38. A bore 30 leading to passages in the blade is of smaller diameter than the normal outside tube diameter so as to form a shoulder 33 against which the adjacent tube end locates. Counterbores 27, 29 are of greater diameter than the normal tube diameter so that the clearance can permit slight movement of the root 15 in its axial mounting slot.
Patent GB-1486471-A (GB)
Title: Detergent compositions
IPC: C23G1/18
Filed: 1974-09-06
Abstract: 1486471 Cleaning compositions HELIOS KEMISK-TEKNISKA FABRIKER AB 6 Sept 1974 [7 Sept 1973] 39056/74 Heading C5D A detergent composition for cleaning an aluminium or aluminium alloy surface consists of water, as a solvent, one or more alkali metal hydroxides and an inhibitor to decrease the corrosion of the surface, one or more watersoluble or water-dispersible salts of one or more unsaturated fatty acids, and optionally a calcium soap dispergator which is a surface active agent having the ability to keep a calcium soap finely dispersed and prevent the formation of a visible calcium soap scum. The unsaturated fatty acid may be tall oil, oleic, linoleic or ricinoleic acid, the potassium salt thereof being present. The alkali metal hydroxide may be sodium or potassium hydroxide or a mixture thereof. The calcium soap dispergator may be an ethoxylated tallow fatty alcohol.
Patent GB-898893-A (GB)
Title: Railway signalling track circuits
IPC: B61L23/12
Filed: 1960-11-15
Abstract: 898,893. Track circuit. SOC. TECHNIQUE POUR L'INDUSTRIE NOUVELLE S.A. Nov. 15, 1960 [Dec. 11, 1959], No. 39138/60. Class 105. A track circuit receiving device, which is energized from track rails A and B with periodically repeated current pulses having predetermined mark and space lengths, comprises a shunt connected saturable transformer 2 with primary winding 21 supplied by high output impedance oscillator 1, a control winding 22 supplied in series with a first relay 41 from the track rails and a load winding 23 which supplies a second relay 32 via a rectifier 31. During the mark intervals the current pulse from A, B energizes relay 41 and saturates transformer 2, whereby the transfer of energy from primary circuit 21 to relay 32 ceases and during the space intervals relay 41 is not energized and energy passes to relay 32. The capacities of delay condensers 33 and 42, connected across relays 32 and 41 respectively, are chosen so that when the device is supplied with a current pulse signal having predetermined mark and space lengths the relays are maintained operated. The contacts of relays 32 and 41 are connected in series. Relays 32, 41 may be replaced by separate coils of a single relay.